278642196

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{647}}^1\times {\mathrm{1709}}^1$

素因数の和:2373

約数の個数: 72

約数和(自身を含む): 806682240

約数和(自身を除く): 528040044

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 647, 1294, 1709, 1941, 2588, 3418, 3882, 4529, 5127, 5823, 6836, 7764, 9058, 10254, 11646, 11963, 13587, 15381, 18116, 20508, 23292, 23926, 27174, 30762, 35889, 40761, 47852, 54348, 61524, 71778, 81522, 107667, 143556, 163044, 215334, 430668, 1105723, 2211446, 3317169, 4422892, 6634338, 7740061, 9951507, 13268676, 15480122, 19903014, 23220183, 30960244, 39806028, 46440366, 69660549, 92880732, 139321098, 278642196]

約数ペア:

[(1, 278642196), (2, 139321098), (3, 92880732), (4, 69660549), (6, 46440366), (7, 39806028), (9, 30960244), (12, 23220183), (14, 19903014), (18, 15480122), (21, 13268676), (28, 9951507), (36, 7740061), (42, 6634338), (63, 4422892), (84, 3317169), (126, 2211446), (252, 1105723), (647, 430668), (1294, 215334), (1709, 163044), (1941, 143556), (2588, 107667), (3418, 81522), (3882, 71778), (4529, 61524), (5127, 54348), (5823, 47852), (6836, 40761), (7764, 35889), (9058, 30762), (10254, 27174), (11646, 23926), (11963, 23292), (13587, 20508), (15381, 18116)]